| ACUS Limited | Private company limited by shares | Dissolved |
| ACUS Energy Hong Kong Limited | | Live |
| ACUS Commercial Refrigeration Co., Limited | Private company limited by shares | Live |
| Acusa Limited | Private company limited by shares | Live |
| Acusense Devices Limited | Private company limited by shares | Live |
| ACUSENSE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Acusight Investment Limited | | Live |
| ACUSON HONG KONG LIMITED | Private company limited by shares | Dissolved |
| ACUSON MOTOR LIMITED | Private company limited by shares | Dissolved |
| CONSTRUCCIONES ACUSTICAS LIMITED | Private company limited by shares | Live |